If you had problems playing hdr10 blurays or content in your tv, that option was for you..if it always worked, dont bother to enable it.
Planet Earth II would not start for the life of me. I changed the settings around and I don't know why but it just worked now. I had the guide menu open while putting in the disc... The Blu-ray app launched, was stuck while loading for about half a second and then the intro came. I hope this works again when I really wanna watch it.